Breeding method for high-resistance and grain-saving high-quality laying hens

A technology with high resistance to grain saving type and cultivation method, which is applied in the direction of animal husbandry and other directions to achieve the effects of improving economic benefits, improving egg production rate and reducing costs

Active Publication Date: 2019-01-11
扬州大学实验农牧场有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method for cultivating high-resistance grain-saving high-quality laying hens, which solves the technical problem that the cultivation methods in the prior art cannot realize grain-saving and high yield at the same time

Method used

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  • Breeding method for high-resistance and grain-saving high-quality laying hens

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Embodiment 1

[0036] The invention discloses a method for cultivating the terminal male parent: select Nongda No. 3 parental rooster and Hailan gray commercial generation hen for two-stage close hybridization, cross-cross and fix them, and then perform five generations of breeding by seed selection method one, The A-series variety was selected as the terminal male parent, and the Hy-Line gray commercial hen was the pink-shell egg-line Hai-Line gray commercial hen;

[0037] Seed selection method one comprises the following steps: (1) selecting 18 weeks old body weight is the hen of 0.90 kilogram scope, and 18 weeks old body weight is the cock within the 1.10 kilogram scope; (2) waits for the hen in step (1) and When the rooster grows to 66 weeks of age, a rooster with a body weight of no more than 1.8 kg and a hen with a body weight of no more than 1.6 kg and no less than 235 eggs are selected; (3) in this generation, through molecular auxiliary marker selection, the GHR gene Screen the muta...

Embodiment 2

[0039] The invention discloses a breeding method for the first female parent: select Nongda No. 3 parental rooster and Rugao grass chicken hen for two close hybridizations, cross-cross and fix them, and then carry out five generations of breeding through seed selection method two, and select the The B-series breed hen is used as the first female parent;

[0040] Seed selection method two comprises the following steps: (1) selecting 18 weeks old body weight is the hen of 0.90 kilogram scope, and 18 weeks old body weight is the cock within the 1.10 kilogram scope; (2) waits for the hen in step (1) and When the rooster grows to 66 weeks of age, a rooster with a body weight of no more than 2.2 kg and a hen with a body weight of no more than 1.7 kg and no less than 235 eggs are selected; (3) selection by molecular auxiliary markers in this generation, the GHR gene Screen the mutation site, leave the base deletion mutation individuals between the 10th exon and 3'UTR, and delete the ...

Embodiment 3

[0042] The invention discloses a method for cultivating the first male parent: select domestic local three-yellow chickens to form a full sibling family, carry out closed-group breeding, and then carry out five generations of breeding through seed selection method 3, and select the C line as the first male parent. The domestic local three-yellow chicken in the step S3 is an adult rooster with a body weight of 1.7kg and a hen of 1.4-1.6kg, a local variety Rugao grass chicken with the characteristics of three-yellow.

[0043] Seed selection method three comprises the following steps: (1) select 18 weeks old body weight to be the hen of 1.25-1.35 kilogram range, and 18 weeks old body weight to be the cock within the 1.45-1.55 kilogram scope; (2) in step (1) The hen and cock grow up to 66 weeks of age, select a cock with a body weight of no more than 2.5 kg, a hen with a body weight of no more than 1.7 kg and a number of eggs not less than 186.7; (3) according to steps (1) and (2),...

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Abstract

The invention discloses a breeding method for high-resistance and grain-saving high-quality laying hens. A local breed and a dwarf breed of our country are taken as materials, and DW (Dwarf Gene) is introduced into the local breed of our country. A new multiline cross system for high-quality laying hens is established by using the conventional breeding methods combined with molecular assisted marker selection and through strain selection, cross matching and the like, and finally, a new high-resistance and grain-saving high-quality laying hens breed is bred. The technical problem that the cultivation method in the prior art can not realize grain saving and high yield simultaneously is solved.

Description

technical field [0001] The invention relates to the technical field of poultry breeding, in particular to a method for cultivating high-resistance, grain-saving and high-quality laying hens. Background technique [0002] my country is the largest country in egg production, but the production of high-quality eggs only accounts for about 8% of the total market, and most of the chickens are eggs produced by foreign high-yield laying hens (such as: Roman, Hailan, etc.). my country is a multi-ethnic country, and the traditional food culture formed over thousands of years pays attention to color, aroma and taste. The total output of poultry eggs in my country has ranked first in the world for more than 10 consecutive years, and the per capita occupancy has also greatly exceeded the world average. There is not much room for development to gain profits from expanding the scale. Therefore, it is difficult for the total amount of poultry eggs to reproduce the development momentum of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 姜庆林张宜辉尹召华印伯星姚新年俞步青杨仁琴毕玉林
Owner 扬州大学实验农牧场有限公司
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